patch 8.2.4682: Vim9: can use :unlockvar for const variable Commit: https://github.com/vim/vim/commit/7a411a306f90339d8686e42ac16e1ae4fc7533c5 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 4 14:58:06 2022 +0100 patch 8.2.4682: Vim9: can use :unlockvar for const variable Problem: Vim9: can use :unlockvar for const variable. (Ernie Rael) Solution: Check whether the variable is a const.

" Script to fill the window with emoji characters, one per line.
" Source this script: :source %

if &modified
  new
else
  enew
endif

" Use a compiled Vim9 function for speed
def DoIt()
  var lnum = 1
  for c in range(0x100, 0x1ffff)
    var cs = nr2char(c)
    if charclass(cs) == 3
      setline(lnum, '|' .. cs .. '| ' .. strwidth(cs))
      lnum += 1
    endif
  endfor
enddef

call DoIt()
set nomodified